private void Form1_Load(object sender, EventArgs e) { var students = new StudentsBusiness(); students.DataObject = new StudentDataManagement(); dataGridView1.DataSource = students.ShowAll(); previous(); }
private void previous() { var students = new StudentsBusiness(); students.DataObject = new StudentDataManagement(); Student s = students.Prior(); txtFirstName.Text = s.FirstName; txtLastName.Text = s.LastName; txtDepartment.Text = s.Department; txtId.Text = s.Id.ToString(); }
private void btndelete_Click(object sender, EventArgs e) { var students = new StudentsBusiness(); students.DataObject = new StudentDataManagement(); int id = Convert.ToInt32(txtId.Text); students.Delete(id); SchoolDbEntities db = new SchoolDbEntities(); dataGridView1.DataSource = db.Students.ToList(); }
private void btnsave_Click(object sender, EventArgs e) { var students = new StudentsBusiness(); students.DataObject = new StudentDataManagement(); Student s = new Student { FirstName = txtFirstName.Text, LastName = txtLastName.Text, Department = txtDepartment.Text }; students.Add(s); SchoolDbEntities db = new SchoolDbEntities(); dataGridView1.DataSource = db.Students.ToList(); }